How mobile phone charger works ? | SMPS Switch mode power supply
Vložit
- čas přidán 27. 06. 2024
- How to convert AC to DC using traditional Linear transformer Link : • How to convert AC to D...
Switched-Mode Power Supplies (SMPS) are designed to address the challenges of traditional linear transformers by operating at much higher frequencies. This higher-frequency operation allows for the use of smaller coils (transformers and inductors) and reduces the size and weight of the power supply significantly.
The key advantages of SMPS include:
Higher Frequency Operation: SMPS use high-frequency switching techniques, typically in the kilohertz or megahertz range, compared to the low-frequency operation of traditional linear transformers (50-60 Hz). The higher frequency enables the use of smaller and lighter magnetic components, making SMPS much more compact and portable.
Efficiency: SMPS are more efficient than traditional linear transformers. They minimize energy loss by switching the power to the load more efficiently, reducing wasted energy and heat generation. This efficiency contributes to longer battery life in mobile devices and lower energy consumption in other applications.
Reduced Size and Weight: Due to the use of higher frequencies and smaller magnetic components, SMPS are considerably smaller and lighter compared to traditional linear transformers. This makes them ideal for portable electronic devices and applications where space and weight are critical factors.
Regulation and Control: SMPS incorporate feedback control mechanisms to regulate the output voltage and maintain stability. This allows for precise voltage regulation even with fluctuations in input voltage or changes in load conditions.
Wide Input Voltage Range: SMPS can often handle a wide range of input voltages, making them suitable for international use where mains voltages may vary.
Flexibility and Versatility: SMPS technology can be adapted to different input and output voltage requirements, making it suitable for a wide range of electronic devices and applications.
SMPS have become the standard choice for modern power supplies due to their higher efficiency, smaller size, and versatility. They are commonly used in mobile phone chargers, laptop adapters, desktop computers, LED drivers, and various other electronic devices where efficiency, size, and portability are crucial considerations. - Věda a technologie
I just understand after graduating Electrical Engineering 2 years ago. 😂
Thanks prof Mad🙏
This is the most amazing explanation I've ever seen , now I understand how the use of small transformers is possible instead of big ones and how the switching process works with the transformer which was a little bit confusing for me before , thank you very much
The best prof explanation ever 1:44
Excellent delivery. Prof Mad need to create more content.
Great video, one of the best on SMPS!
smps always has my brain into thinking how a tiny ferrite transformer can provide such high currents.
same I used a
thankyou for such accurate video. 💯
Wao very very huge information and Good animation with full diagram working procedures, amazing 😍
A very good video with simple explaination ❤
Thank you! 😃
I like the information about the transistor.
welcome
Nice explanation on mobile charger smps.
Thanks for watching
nice explanation with animation ❤❤❤
Very good understanding to viewers thnx
You are wonderful, thank.
Very useful, thank you so much
nice explanation
Many thanks it's an informative video
Nicely explained!👍
Thanks 🙂
Thanks for the wonderful explanation, prof. Still I am confused as to how capacitor C1 gets charged from the other side with DC current from S1 then turns on transistor T1 from the other side
Awsome👍
very good explaination and video
Glad it was helpful!
great
Top
👏👏👏👏
Wow 0:36
Another way to think about frequency and transformers is to think of a ruler hanging off of the edge of a table. The further is hangs off the edge the slower it will wobble if you apply a force to it and then let go. The more of it to pull onto to table, the faster those back and forth movements (frequency) will go. Larger objects have a lower natural frequency, smaller objects have a higher frequency. The smaller the object (transformers here) the faster you can switch it.
Nice +++
although I understand everything one thing is still confusing me. The capacitor below T1 will be charged by the secondary voltage. The current will pass through that capacitor and the base resistor to fully turn the transistor T1 on. Won't the capacitor be open after some time because this is DC voltage?
Some see the high frequency DC as AC, who is correct? Is it only AC if it oscillates around the 0 Volt axis?
please give details about construction of Resistance Temperature detector
I don't know much about electronics but really like this...Plz make a video on how to make a hand crank mobile charger.
sure.
@@Profmad Thank you so much.. I will be eagerly waiting for new video....
hello can someone give me a digram for converting 220 v rms Ac to 5 dc
So AC > DC and then DC > DC
Nicely spoken by an AI Voice, as Americans would only refer to their voltage as 120V not 230 or 240, plus a spoken grammatical error at the end of the video and no one ends a sentence on a higher flat tone :) ( unless your Australian) but still, an interesting look at SMPSs
It's RC Bray, a super popular audio book narrator. AI is scary
why there is 1 diode at the output of transformer, if it is outputting DC... the capacitor alone should be enough to filter the DC..
and if it is necessary for some reason, there should be 4 in the bridge format
Without the diode the capacitor would drain back into s2 between the cycles.